Home / 5,118.12-7,675.14-1,830.60

Finding the Fourth Proportional to 5,118.12, 7,675.14 and 1,830.60

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Solution

The fourth proportional to 5,118.12, 7,675.14 and 1,830.60 is: 2,745.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,118.12 : 7,675.14 = 1,830.60 : x
  2. Step 2: Convert to fraction form
    5,118.12/7,675.14 = 1,830.60/x
  3. Step 3: Cross multiply
    5,118.12x = 7,675.14 × 1,830.60
  4. Step 4: Simplify right side
    5,118.12x = 14,050,111.28
  5. Step 5: Solve for x
    x = 14,050,111.28/5,118.12
  6. Step 6: Final answer
    x = 2,745.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.